India travel withing 1 month of changing employer on H1b visa


I am currently on H1 with employer A and planning to switch job with employer B. But I have an unavoidable India travel in the month of March 2015. I was wondering if I transfer my H1 to employer B and go to India, should I go for stamping again?

Also is there any risk involved during stamping or immigration, if I travel to India within 1 month of changing the employer?

Any help in this regard is much appreciated.

Employer A is a services company like Infosys, CTS and I have been employed with them for over 8 years. I am on H1 status in US for the past one year.